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05-17

Development and Reform Commission: Accelerate the energy-saving transformation of key industries such as electric power, steel, nonferrous metals, petrochemicals, etc.

"National Development and Reform Commission" WeChat public account on May 13 news. In the morning, Liu Dechun, director of the Department of Environmental Resources and Resources of the National Development and Reform Commission, presided over a video conference to remind some areas with severe energy conservation situation, and the energy consumption intensity in the first quarter of this year would not decrease. Responsible comrades of the energy-saving authorities in Zhejiang, Guangdong, Guangxi, Yunnan, Qinghai, Ningxia, Xinjiang and other provinces and autonomous regions of Zhejiang, Guangdong, Guangxi, Xinjiang, etc. have talked to remind them to urge relevant regions to earnestly implement the deployment requirements of the Party Central Committee and the State Council, and further strengthen the dual control of energy consumption. To ensure the completion of the annual energy consumption dual control objectives and tasks in the region. The meeting requested that relevant regions should be highly vigilant of the severe energy conservation situation in the first quarter, in-depth analysis and in-depth reflection on the causes of problems, and effective measures should be taken to quickly reverse the current passive situation of work. It is necessary to strengthen energy budget management, strengthen energy-saving review of fixed asset investment projects, strengthen energy-saving supervision, improve online monitoring of energy consumption of key energy-consuming units, and dynamically grasp the situation. It is necessary to vigorously promote key energy-saving and carbon-reduction projects, accelerate the energy-saving transformation of key industries such as electric power, steel, nonferrous metals, building materials, petrochemicals, and chemicals, tap energy-saving potential, and accelerate the elimination of outdated production capacity. It is necessary to carry out the upgrading and transformation of buildings, transportation and lighting, promote the optimal utilization of energy in the park, and improve the energy-saving level of public institutions. It is necessary to further strengthen the supervision of high-energy-consumption and high-emission projects in accordance with the requirements of the relevant notice, sort out and deal with them according to classification, and resolutely take down the "two highs" projects that do not meet the requirements. The meeting emphasized that the relevant regional energy conservation authorities must earnestly perform their duties, strengthen work supervision, and promote energy conservation work in accordance with the law. It is necessary to promptly carry out the "13th Five-Year Plan" energy consumption dual control and the assessment and self-examination of coal reduction in key areas, and put forward rectification measures on the issue of rising energy consumption intensity in the first quarter. It is necessary to further improve the position, be brave to assume responsibility, and work hard to actively promote carbon peaking and carbon neutrality, clarify timetables, road maps, and construction drawings as soon as possible, and effectively promote economic and social development based on the efficient use of resources and green and low-carbon development. Based on. Zhejiang Province, Guangdong Province, Guangxi Zhuang Autonomous Region, Yunnan Province, Qinghai Province, Ningxia Hui Autonomous Region, Xinjiang Uygur Autonomous Region Development and Reform Commission, Qinghai Provincial Department of Industry and Information Technology and Zhejiang Province, Guangdong Province Energy Bureau related responsible comrades attended the meeting. Relevant responsible comrades of the Hubei Provincial Development and Reform Commission attended the meeting as non-voting delegates.
05-17

From January to April in 2021, the country's total electricity consumption is 2.55.8 billion kWh, a year-on-year increase of 19.1%

From January to April, the electricity consumption of the whole society continued to grow rapidly, and the electricity consumption of the whole society in all provinces maintained a positive growth; the growth rate of electricity consumption in the country's 13 provinces exceeded the national average; the electricity consumption of industry and manufacturing increased Speeds are higher than the average level of electricity consumption in the whole society; the combined electricity consumption growth rate of the four major high-load energy industries has increased year-on-year, but is lower than the industrial average.    1. The electricity consumption of the whole society    From January to April, the country’s electricity consumption was 2.5581 billion kWh, a year-on-year increase of 19.1%. Among them, the country’s electricity consumption in April was 636.1 billion kWh, a year-on-year increase of 13.2%. Analyzed by industry①, from January to April, the power consumption of the primary industry was 28.3 billion kWh, a year-on-year increase of 23.8%; the power consumption of the secondary industry was 1,707.4 billion kWh, a year-on-year increase of 20.7%; the power consumption of the tertiary industry was 437.9 billion KWh, an increase of 29.0% year-on-year; the electricity consumption of urban and rural residents was 384.5 billion kWh, an increase of 3.8% year-on-year. (Figure 1 Monthly electricity consumption and growth rate of the whole society in 2020 and 2021)    In April, the growth rate of electricity consumption in the primary, secondary and tertiary industries was 16.4%, 12.3% and 31.3% respectively; the electricity consumption of urban and rural residents decreased by 0.9% year-on-year.    2. Electricity consumption by region    From January to April, the electricity consumption of the whole society in the eastern, central, western and northeastern regions was 11,871, 4,791, 7410, and 151 billion kWh, respectively, with growth rates of 21.8%, 19.8%, 16.6%, and 9.5%.    In April, the growth rate of electricity consumption in the eastern, central, western and northeastern regions was 14.7%, 12.6%, 12.4% and 6.6% respectively. (Figure 2 Total electricity consumption and its growth rate in the current month by region)    From January to April, the growth rate of electricity consumption in the whole society in 13 provinces exceeded the national average. In order: Tibet (33.6%), Hubei (31.9%), Zhejiang (29.3%), Guangdong (29.2%), Yunnan (27.1%), Jiangxi (24.9%), Jiangsu (24.1%), Fujian (23.3%) , Guangxi (21.8%), Sichuan (21.8%), Chongqing (20.4%), Anhui (19.8%) and Shaanxi (19.4%). In April, the growth rate of electricity consumption in 15 provinces exceeded the national average, followed by Tibet (27.5%), Guangdong (22.6%), Ningxia (22.0%), Hubei (20.0%), Hainan (19.6%) , Qinghai (19.3%), Yunnan (18.4%), Zhejiang (16.5%), Sichuan (16.3%), Fujian (16.1%), Jiangxi (15.6%), Jiangsu (15.1%), Guangxi (14.4%), Hebei (13.9%) and Shaanxi (13.6%); all provinces and the whole society have a positive growth in electricity consumption.    3. Electricity consumption in industry and manufacturing    From January to April, the national industrial electricity consumption was 1,675.7 billion kilowatt-hours, an increase of 20.5% year-on-year, and the growth rate was 26.6 percentage points higher than the same period last year, accounting for 65.5% of the total electricity consumption of the society. In April, the national industrial electricity consumption was 437.1 billion kWh, a year-on-year increase of 12.1%, and the growth rate was 10.7 percentage points higher than the same period last year, accounting for 68.7% of the total electricity consumption of the society.    From January to April, the nation’s manufacturing power consumption was 1,276.5 billion kWh, a year-on-year increase of 22.5%, and the growth rate was 29.0 percentage points higher than the same period last year. Among them, the total electricity consumption of the four high-load energy industries was 705.9 billion kwh, a year-on-year increase of 16.3%, and the growth rate was 19.4 percentage points higher than the same period last year; the high-tech and equipment manufacturing industry ③The electricity consumption was 267 billion kwh, a year-on-year increase 35.9%, the growth rate increased by 46.8% over the same period of the previous year; consumer goods manufacturing ④ electricity consumption was 165.2 billion kWh, a year-on-year increase of 27.5%, and the growth rate was 41.8% higher than the previous year; other manufacturing ⑤ industry electricity consumption 1385 Billion kilowatt-hours, an increase of 26.5% year-on-year, an increase of 32.9 percentage points over the previous year. In April, the national manufacturing power consumption was 344.1 billion kWh, a year-on-year increase of 12.7%, and the growth rate was 12.6 percentage points higher than the same period last year; the average daily power consumption of the m
05-14

Forecast and analysis of market size and development trend of China's environmental protection and water industry in 2021

With the advancement of industrialization, my country's industrial wastewater discharge has been relatively large. The construction of sewage treatment facilities lags behind, and industrial sewage is discharged without treatment up to the standard, resulting in the continuous deterioration of the water quality of natural water bodies and the serious pollution of water resources. Water pollution has become one of the important factors restricting the sustainable development of my country's economy and society.    Water resources are limited    The total amount of water resources in China is relatively high. Data shows that the total amount of water resources in China has increased from 2,796.2 billion cubic meters in 2015 to 3,096.3 billion cubic meters in 2020. Due to the large population of China, the amount of water resources per capita is relatively small. In 2020, the amount of water resources per capita in my country will reach 2,211 cubic meters. In the arid regions of northwest China, the amount of water resources per capita is even smaller. In recent years, the amount of industrial water and domestic water has been continuously increasing, but water resources are very limited, and the task of purification and treatment of sewage is very important. The sewage must be allocated and optimized for recycling.   (数据显示:国家统计局、中商产业研究院整理)   污水排放量逐年上涨   数据显示,中国污水年排放量从2015年466.62亿立方米增长至2019年554.65亿立方米,年均复合增长率达4.41%,中国污水排放量在逐年递增,预计2020年中国污水排放量达579.1亿立方米。   (数据来源:住建部、中商产业研究院整理)   中国环保水务行业发展趋势   1、行业发展由资本推动转变为技术和资本共同推动   目前,环保水务项目更加注重对先进工艺技术研发和应用。工业污水处理设施,由于处理的工业污水成分愈加复杂,处理难度高,需要集成多种工艺技术才能实现污水排放的稳定达标。受水体污染影响,优质供水设施处理的原水水质恶化,处理工艺也需要不断更新,以保证安全供水和人民群众对优质供水的需求。环保水务行业的发展已转变为由技术和资本共同推动。   2、TEPS模式逐渐成为工业污水处理的重要模式   目前,我国工业园区的污水治理主要采用―企业预处理+园区集中处理的模式,排污企业负责污水预处理设施的建设和运营,第三方污水处理服务商负责园区污水处理厂的投资、建设和运营。   TEPS模式以总程平衡作为主要的技术手段,是优化了的环境污染第三方治理模式。总程平衡是一种全新的污染治理观念和水污染治理模式,污染物去除总量由污染源和排放指标确定,而处理程度和处理量在时间和空间上的分布和相应的工艺路线则借助自动化技术在生产工艺和废水末端处理之间建立起一种动态的平衡,从而选择最合理的处理工艺去处理不同的废水,实现最佳的技术经济效益。   3、行业迈向智慧化发展道路   随着信息技术、物联网技术和人工智能的发展,环保水务行业正走向生产智能化、工艺装备化、设备集成化、监测数据化和管理信息化的智慧化发展道路。借助不断发展创新的技术手段,未来的环保水务行业可以实现人类社会与环境业务的系统整合,以更加精细和动态的方式实现环境管理和决策,创造性地改变现有业务模式,并在智能装备、智慧服务等诸多领域,孕育巨大的市场机会。
05-13

Can hydrogen storage become the "stabilizer" of the power grid?

According to a report by the Voice of Economy of China Central Radio and Television "Tianxia Finance", hydrogen energy has ushered in a wave of deployment this year, and some photovoltaic companies have entered this field one after another. Compared with other energy sources, hydrogen energy is clean and environmentally friendly, with high energy density, and is regarded by some as the "ultimate energy source". However, in order to develop hydrogen energy on a large scale, there are still bottlenecks in the production, storage, transportation, and use of multiple links, a long industrial chain, and complex technology. Right now, the northern region is about to enter summer, and the power system is preparing for the peak of summer. As the installed capacity of power generation continues to increase, in recent years, the overall supply of electricity in my country has shown a pattern of oversupply. However, in the winter that has just passed, the phenomenon of power cuts reappeared in some places after many years. According to expert analysis, one of the reasons for this seemingly contradictory phenomenon is the rapid development of renewable energy sources such as photovoltaics and wind power. To support the development of renewable energy, it is necessary to minimize such fluctuations. Yu Zhuoping, director of the Expert Committee of China Hydrogen Energy Alliance and professor of Tongji University, said that on the power generation side, photovoltaic companies are currently exploring the use of hydrogen storage to optimize power supply. "The power grid hopes to have a stable power source. Hydrogen is now used as an intermediate carrier. The electricity that can be connected to the Internet is used to produce hydrogen. The electricity that cannot be connected to the Internet is actually converted into hydrogen energy and stored. This It can be done on a large scale." When the electricity load increases, it can operate in the reverse direction, using the stored hydrogen to generate electricity and supply power to the grid. In this way, renewable energy power generation becomes flexible and controllable, no longer "seeing the sky for food", and the pressure on the power grid will be significantly reduced. However, it is worth noting that there are currently no mature application cases for hydrogen storage in the world. Some experts have also questioned this technology. The biggest question is how high energy efficiency is when energy is switched back and forth between electricity and hydrogen energy. ?According to Zhou Zhensheng, CEO of the Hydrogen Energy Division of GCL Group, the energy efficiency is only 40% after a cycle from electricity to hydrogen to electricity. And currently in the field of energy storage, there are also models such as pumped storage and energy storage batteries. Taking energy storage batteries as an example, the entire process is charging and discharging, and the energy loss is only about 10%, which is significantly higher than hydrogen storage. However, Zhou Zhensheng said that compared with batteries, hydrogen storage also has unparalleled advantages. "General energy storage batteries, lithium batteries, the storage time is very short, at most one week, but hydrogen is not the same, a few years will work, this is a very important point. In addition, it can be reversed in the (grid) Basically, I think the fuel cell can be unrestricted. As long as there is hydrogen, it can be supplied indefinitely." In addition, the more power stored by the energy storage battery, the larger the space occupied, so it is not suitable for large-scale energy storage scenarios such as power stations. However, pumped storage needs to be close to the water source, and there are also conditions. In a comprehensive comparison, the potential of hydrogen storage is greater. In April, hydrogen storage ushered in policy support. The National Energy Administration issued the "Guiding Opinions on Energy Work for 2021", proposing that it should be demand-oriented and explore the research and demonstration applications of hydrogen energy storage and other innovative energy storage technologies. However, some insiders pointed out that to solve the problem of renewable energy consumption, it is not enough to increase energy storage facilities on the power generation side. Will hydrogen storage not be used and become a decoration? This is also the most worrying issue for photovoltaic and wind power companies. Yu Zhuoping believes that even if the power grid is not deployed, hydrogen storage will not be useless in the future. Yu Zhuoping said: "I even use renewable energy to produce hydrogen. I can't go online at all. If there is a lot of (electricity) in some places, and now it’s difficult to go online, I will immediately turn the generated electricity into hydrogen. Just store it and use it on the application side. This is a very good solution. So we say that hydrogen energy will promote the large-scale app
04-07

Sewage treatment: a fast-growing field of environmental protection and water affairs

Sewage treatment has been a key area of ​​my country’s ecological environment protection in recent years. The "14th Five-Year Plan" for key river basin water ecological environment protection work promotion meeting put forward "If there is a river, there must be water, if there is water, there must be fish, and if there is fish, there must be grass. , Can swim in the river” requirements. The "14th Five-Year Plan" will pay more attention to water ecological protection and restoration based on the improvement of water environment quality. Upgrading and upgrading is still the key work of the industry. In May 2020, the National Development and Reform Commission clearly promoted the utilization of wastewater resources, studied and promoted the drafting of guidelines and related implementation plans for the utilization of wastewater resources, and promoted the establishment of a "1+N" policy framework system for the utilization of wastewater resources. With the introduction of a series of favorable policies for the industry, the sewage treatment industry is expected to open up the space for rapid growth. Sewage treatment is an important part of the environmental protection water sector. It refers to the process of removing or reducing solid pollutants and organic pollutants in different types of sewage through professional treatment methods, so that the purified water can meet the requirements for reuse or discharge. At present, sewage treatment has been widely used in agriculture, petrochemical, medical, catering and other fields. Sewage treatment is located at the end of the entire water service industry and plays a vital role in the recycling of the water service industry. Only the good operation of the wastewater treatment stage can ensure the continuous circulation of the industrial chain. At present, my country's sewage treatment industry chain mainly consists of water treatment equipment, engineering construction, and operation services. The proportion of revenue in terms of revenue shows a pyramidal distribution, but in terms of gross profit margin, the further downstream, the higher the gross profit margin. Sewage treatment industry panorama: (Chart source: Ping An Securities) Sewage can be divided into production sewage, domestic sewage and polluted rainwater according to its source. Production sewage can be divided into industrial sewage, agricultural sewage and medical sewage, of which industrial sewage is the main one. At present, the treatment of industrial sewage and domestic sewage in the production sewage is the key target of the sewage treatment industry. Although the amount of industrial wastewater discharge has decreased in recent years, the total amount is still high. The top 4 industries with wastewater discharge volume are paper and paper products, chemical raw materials and chemical products manufacturing, textiles, coal mining and washing. In the selection of industries, the wastewater discharge of the four industries was 8.8 billion tons, accounting for 47.1% of the total wastewater discharge of industrial enterprises. Industrial wastewater is a technology-based industry due to its wide variety, large discharge volume, and many pollutant elements. It requires high technical level of sewage treatment plants, and the treatment processes of different industries are very different. Rural sewage treatment is still in its infancy, and treatment facilities are generally imperfect in the construction of plant networks. The sewage treatment rate in rural areas is only about 10%. A large amount of untreated rural sewage is directly discharged into the river system and becomes the main source of water pollution. The key to solving the dilemma of rural sewage treatment is to explore technologies that are high-efficiency, low-input, and low-operating costs, which are suitable for decentralized rural sewage treatment. At present, there are about 30 kinds of sewage treatment processes in China, and the top six sewage treatment processes are: oxidation ditch process, A2/O process, traditional activated sludge process, SBR process, A/O process and biological Membrane process. From the perspective of the development history of biological wastewater treatment, the biofilm method was born before the activated sludge method. Although the early biofilm method has the characteristics of high biomass, good purification effect and low energy consumption compared with the activated sludge method, Due to its low hydraulic load and organic load, its application in large-scale sewage treatment projects is limited. Therefore, currently domestic sewage treatment plants mostly use the activated sludge method and its derivative processes, such as: A2O process, SBR process, oxidation ditch process, AO process, etc. According to the forecast of China Water Network, the scale of my country's reclaimed water is expected to reach 85 million cubic meters per day in 2025. The total investment in the constru
04-01

Yantai, the first "trusted WLAN + smart substation" in Shandong Province, was completed and put into operation

On April 1, Shandong Province's first "trusted WLAN + smart substation" was completed and put into operation at 220 kV Wanhua Station in Yantai Development Zone. The site integrates a trusted WLAN network and intelligent inspection robots, mobile operations, small micro-weather stations and other business systems. Through a secure and trusted wireless WLAN private network, the above-mentioned business information is managed, analyzed and decided in a unified manner, and the operation of the substation is improved. The state's perception level and operation and maintenance efficiency ensure the safety of people and equipment, which greatly contributes to the construction of the intelligent IoT system of substations. During the "14th Five-Year Plan" period, smart grids have put forward higher demands for the application of new information and communication technologies, and the trusted WLAN network adopts China's self-developed WAPI technology, and the domestic cryptographic algorithm SM4 is used as the wireless security access standard. , Adopting an original ternary security architecture system, which is safer and more reliable than WIFI technology, and is especially suitable for industries with high confidentiality requirements such as electric power, railways, and aviation. After many studies and discussions, the State Grid Yantai Power Supply Company selected the 220kV Wanhua Station as the pilot application construction site in conjunction with the key project of the transformation of the auxiliary control system of the substation in 2021. By deploying a trusted WLAN network, it can effectively solve the problems of difficult access to wired communication and small coverage during the transformation of the auxiliary control system in the station, and realize the function of remote inspection and monitoring of the auxiliary equipment of the substation by the substation operation and maintenance personnel. Yantai Power Supply Company will continue to optimize the "trusted WLAN + smart substation" system, continue to strengthen cross-professional, cross-departmental joint collaboration and special research, promote the in-depth integration of production and research, and explore more pilot projects under the premise of ensuring equipment safety, personal safety and data security. Multi-trusted WLAN application scenarios have been implemented, forming a batch of solutions that can be promoted and applied, and quickly promoting the application process of "trusted WLAN + smart grid".
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